Ohio Admin. Code 3745-81-86 - Control of lead and copper - monitoring requirements for lead and copper in tap water
(A) Sample site location
and mapping requirements.
(1)
By the
applicable date for commencement of monitoring under paragraph (D)(1) of this
rule, each
Each public water system
shall complete a materials evaluation of its
the distribution
system in order to identify a pool of targeted sampling sites that meets the
requirements of this rule and is sufficiently large to ensure that the public
water system can collect the number of lead and copper tap samples required in
paragraph (C) of this rule. All sites from which first-draw samples are
collected shall be selected from this pool of targeted sampling sites. Sampling
sites may not include faucets
taps that have point-of-use or point-of-entry
treatment devices designed to remove inorganic contaminants.
(2) A public water system shall use any
information on lead, copper, and galvanized steel that
it
the system
has collected in corrosivity monitoring when conducting a materials evaluation.
When such information is insufficient to locate the requisite number of lead
and copper sampling sites that meet the targeting criteria in paragraph (A) of
this rule, the public water system shall review the following sources of information
listed below in order to identify a
sufficient number of sampling sites. In addition,
the system shall seek to collect such information where possible in the course
of its normal operations (e.g., checking service line materials while reading
water meters or performing maintenance activities).
:
(a) All plumbing
codes, permits, and records in the files of the building
department(s)
department which indicate the plumbing materials that
are installed within publicly and privately owned structures connected to the
distribution system;
.
(b)
Inspections and records of the distribution system that indicate the material
composition of the service connections that connect a structure to the
distribution system; and
.
(c) All
existing water quality information, which includes the results of all prior
analyses of the system or individual structures connected to the system,
indicating locations that may be particularly susceptible to high lead or
copper concentrations.
In addition, the system shall seek to collect such information where possible in the course of normal operations (e.g., checking service line materials while reading water meters or performing maintenance activities).
(3) The sampling sites selected for a
community public water system's sampling pool ("tier one sampling sites") shall
consist of single family structures that meet one of
the following:
(a) Contain copper pipes
with lead solder installed after 1982 and before
1989 or contain lead pipes; or.
(b) Are served by a lead service line. When
multiple-family residences comprise at least twenty per cent of the structures
served by a public water system, the system may include these types of
structures in its
the sampling pool.
(4) Any community public water system with
insufficient tier one sampling sites shall complete its
the sampling pool
with "tier two sampling sites", consisting of buildings, including
multiple-family residences, that meet one of the
following:
(a) Contain copper pipes with
lead solder installed after 1982 and before 1989
or contain lead pipes; or.
(b) Are served by a lead service
line.
(5) Any community
public water system with insufficient tier one and tier two sampling sites
shall complete its
the sampling pool with "tier three sampling sites",
consisting of single family structures that contain copper pipes with lead
solder installed before 1983. A community public water system with insufficient
tier 1, tier 2, and tier 3 sampling sites shall complete
its
the
sampling pool with representative sites throughout the distribution system. For
the purpose of this paragraph, a representative site is a site in which the
plumbing materials used at that site would be commonly found at other sites
served by the public water system.
(6) The sampling sites selected for a
nontransient noncommunity public water system ("tier one sampling sites") shall
consist of buildings that meet one of the
following:
(a) Contain copper pipes
with lead solder installed after 1982 and before
1989 or contain lead pipes; or
.
(b) Are
served by a lead service line.
(7) A nontransient noncommunity public water
system with insufficient tier one sites that meet the targeting criteria in
paragraph (A)(6) of this rule shall complete its
the sampling pool
with sampling sites that contain copper pipes with lead solder installed before
1983. If additional sites are needed to complete the sampling pool, the
nontransient noncommunity water system shall use representative sites
throughout the distribution system. For the purpose of this paragraph, a
representative site is a site in which the plumbing materials used at that site
would be commonly found at other sites served by the public water
system.
(8) Any public water system
whose distribution system contains lead service lines shall draw fifty per cent
of the samples it collects
collected during each monitoring period from sites
that contain lead pipes, or copper pipes with lead solder, and fifty per cent
of those samples from sites served by a lead service line. A public water
system that cannot identify a sufficient number of sampling sites served by a
lead service line shall collect first-draw samples from all of the sites
identified as being served by such lines.
(9)
Mapping
requirements.
The owner or operator of a community or nontransient noncommunity water system shall do all of the following, as applicable:
(a)
Community water systems.
The owner or operator shall identify and map areas of the system that are known or likely to contain lead service lines, and identify characteristics of buildings served by the system that may have solder, fixtures or pipes that contain lead. Characteristics of buildings may be described in a narrative referenced in paragraph (A)(9)(d) of this rule.
(b)
Single building community water systems and
nontransient noncommunity water systems.
The owner or operator shall identify and map areas of the system with solder, fixtures or pipes containing lead in buildings served by the system. Characteristics of the system may be described in a narrative referenced in paragraph (A)(9)(d) of this rule.
(c)
Submit
a copy of the applicable map to the Ohio department of health and the Ohio
department of job and family services.
(d)
The applicable
map, and a list of sampling site locations identified in paragraphs (A)(1) to
(A)(8) of this rule including the contact information for the owner and
occupant for each sampling site shall be submitted to the director. Water
systems may submit a narrative providing additional detail (e.g., description
of the building and the plumbing materials) with the map and list of sampling
site locations. The documentation submitted shall be acceptable and
complete.
(e)
The owner or operator of an existing community or
nontransient noncommunity water system shall complete the initial submission of
the information specified in paragraphs (A)(9)(a) or (A)(9)(b) of this rule in
accordance with section
6109.121 of the Revised Code.
The owner or operator of a new community or nontransient noncommunity water
system shall complete the initial submission of the information specified in
paragraph (A)(9)(a) or (A)(9)(b) of this rule when applying for plan approval
in accordance with Chapter 3745-91 of the Administrative Code.
(f)
The water system
owner or operator shall update and resubmit information required in paragraphs
(A)(9)(a) to (A)(9)(d) of this rule once every five years, beginning five years
after March 9, 2017.
(B) Sample collection methods.
(1) All tap samples for lead and copper
collected in accordance with rules
3745-81-80 to
3745-81-89 of the Administrative
Code, with the exception of lead service line samples collected under paragraph
(C)
(C)(1) of
rule 3745-81-84 of the Administrative
Code and samples collected under paragraph (B)(5)
(B)(3) of this
rule, shall be first-draw samples.
(2) Each first-draw tap sample for lead and
copper shall be one liter in volume and have stood motionless in the plumbing
system of its sampling site for at least six hours. First-draw samples from
residential housing shall be collected from the cold-water kitchen tap or
bathroom sink tap. First-draw samples from a non-residential building shall be
one liter in volume and shall be collected at an interior tap from which water
is typically drawn for consumption. Non-first-draw samples collected in lieu of
first-draw samples pursuant to paragraph (B) (5) of this rule shall be one
liter in volume and shall be collected at an interior tap from which water is
typically drawn for consumption. First-draw samples may be collected by the
public water system or the system may allow residents to collect first-draw
samples after instructing the residents of the sampling procedures specified in
this paragraph. To avoid problems of residents handling nitric acid,
acidification of first-draw samples may be done up to fourteen days after the
sample is collected. After acidification to resolubilize the metals, the sample
must stand in the original container for the time specified in the approved EPA
method before the sample can be analyzed. If a public water system allows
residents to perform sampling, the system may not challenge, based on alleged
errors in sample collection, the accuracy of sampling results.
(3) Each service line sample shall be one
liter in volume and have stood motionless in the lead service line for at least
six hours. Each lead service line sample shall be collected in one of the
following three ways:
(a) At the tap after
flushing the volume of water between the tap and the lead service line. The
volume of water shall be calculated based on the interior diameter and length
of the pipe between the tap and the lead service line;
.
(b) Tapping directly into the lead service
line; or
.
(c) If
the sampling site is a building constructed as a single-family residence,
allowing the water to run until there is a significant change in temperature
which would be indicative of water that has been standing in the lead service
line.
(4) A public water
system shall collect each first-draw tap sample from the same sampling site
from which it collected a previous sample
was collected. If, for any reason, the water
system cannot gain entry to a sampling site in order to collect a follow-up tap
sample, the system may collect the follow-up tap sample from another sampling
site in its sampling pool as long as the new site meets the same targeting
criteria and is within reasonable proximity of the original site.
(5) A nontransient noncommunity water system,
or a community water system that meets the criteria of paragraph
(B)(7)
(G)(8)
of rule 3745-81-85 of the Administrative
Code, that does not have enough taps that can supply first-draw samples, as
defined in rule
3745-81-01 of the Administrative
Code may apply to the director in writing to substitute non-first-draw samples.
Such public water systems shall collect as many first-draw samples from
appropriate taps as possible and identify sampling times and locations that
would likely result in the longest standing time for the remaining
sites.
(C) Number of
samples. Public water systems shall collect at least one sample during each
monitoring period specified in paragraph (D) of this rule from the number of
sites listed in the second column ("standard monitoring") of the table in this
paragraph. A system conducting reduced monitoring under paragraph (D)(4) of
this rule shall collect at least one sample from the number of sites specified
in the third column ("reduced monitoring") of the table in this paragraph
during each monitoring period specified in paragraph (D)(4) of this rule. Such
reduced monitoring sites shall be representative of the sites required for
standard monitoring. A public water system that has fewer than five drinking
water taps that can be used for human consumption meeting the sample site
criteria of paragraph (A) of this rule to reach the required number of sample
sites listed in paragraph (C) of this rule, shall collect at least one sample
from each tap and then shall collect additional samples from those taps on
different days during the monitoring period to meet the required number of
sites. Alternately, the director may allow these public water systems to
collect a number of samples less than the number of sites specified in
paragraph (C) of this rule, provided that one hundred per cent of all taps that
can be used for human consumption are sampled. The director shall approve this
reduction of the minimum number of samples in writing based on a request from
the system or onsite verification by the director. The director may specify
sampling locations when a public water system is conducting reduced monitoring.
The table is as follows:
|
System size (number of people served) |
Number of sites (standard monitoring) |
Number of sites (reduced monitoring) |
|
>100,000 |
100 |
50 |
|
10,001 to 100,000 |
60 |
30 |
|
3,301 to 10,000 |
40 |
20 |
|
501 to 3,300 |
20 |
10 |
|
101 to 500 |
10 |
5 |
|
<101 |
5 |
5 |
(D)
Timing of monitoring. (e)
(5)
Any public water system that demonstrates for two
consecutive six-month monitoring periods that the tap water lead level computed
under paragraph (C)(3) of rule 3745-81-80 of the Administrative Code is less
than or equal to 0.005 milligrams per liter and the tap water copper level
computed under paragraph (C)(3) of rule 3745-81-80 of the Administrative Code
is less than or equal to 0.65 milligrams per liter may reduce the number of
samples in accordance with paragraph (C) of this rule and may reduce the
frequency of sampling to once every three calendar years.
Action level exceedance while on reduced
monitoring.
(i)
(a) A small or medium water system subject to reduced
monitoring that exceeds the lead or copper action level shall resume tap water
monitoring in accordance with paragraph (D)(3) of this rule and collect the
number of samples specified for standard monitoring under paragraph (C) of this
rule. Such a public water system shall also conduct water quality parameter
monitoring in accordance with paragraph (B), (C), or (D), as appropriate, of
rule 3745-81-87 of the Administrative
Code during the monitoring period in which the system exceeded the action
level. Any such public water system may resume annual monitoring for lead and
copper at the tap at the reduced number of sites specified in paragraph (C) of
this rule after it has completed two subsequent consecutive six-month rounds of
monitoring that meet the criteria of paragraph (D)(4)(a) of this rule
and/or
or may
resume triennial monitoring for lead and copper at
the reduced number of sites after it demonstrates
through subsequent rounds of monitoring
that it meets the criteria of either
paragraph (D)(4)(c) or (D)(4)(e) of this
rule.
(ii)
(b) Any public water system subject to the reduced
monitoring frequency that exceeds the lead or copper action level during any
four-month monitoring period or fails to operate at or above the minimum value
or within the range of values for the water quality parameters specified by the
director under paragraph (F) of rule
3745-81-82 of the Administrative
Code for more than nine days in any six-month period specified in paragraph (D)
of rule 3745-81-87 of the Administrative
Code shall conduct tap water sampling for lead and copper at the frequency
specified in paragraph (D)(3) of this rule, collect the number of samples
specified for standard monitoring for lead and copper under paragraph (C) of
this rule, and shall resume monitoring for water quality parameters within the
distribution system in accordance with paragraph (D) of rule
3745-81-87 of the Administrative
Code. This standard tap water monitoring shall begin no later than the
six-month period beginning January first or July first,
whichever comes first,
of the calendar
year following the lead or copper action level exceedance or water
quality parameter excursion. Such a public water system may resume reduced
monitoring for lead and copper at the tap and for water quality parameters
within the distribution system under the following conditions: (a)
(i) The public water
system may resume annual monitoring for lead and copper at the tap at the
reduced number of sites specified in paragraph (C) of this rule after it has
completed two subsequent six-month rounds of monitoring that meet the criteria
of paragraph (D)(4)(b) of this rule and the system has received written
acceptance from the director that it is appropriate to resume reduced
monitoring on an annual frequency. This sampling shall begin during the
calendar year immediately following the end of the second consecutive six-month
monitoring period.
(b)
(ii) The system may resume triennial monitoring for
lead and copper at the tap at the reduced number of
sites after it demonstrates through
subsequent rounds of monitoring that it meets the criteria of
either paragraph (D)(4)(c)
or (D)(4)(e) of this rule and the public
water system has received written acceptance from the director.
(c)
(iii)
The public water system may reduce the number of water quality parameter tap
water samples required in accordance with paragraph (E)(1) of rule
3745-81-87 of the Administrative
Code and the frequency with which it
the system collects such samples in accordance with
paragraph (E)(2) of rule
3745-81-87 of the Administrative
Code. Such a system may not resume triennial monitoring for water quality
parameters at the tap until it
the system demonstrates, in accordance with the
requirements of paragraph (E) (2)
(E)(3) of rule
3745-81-87 of the Administrative
Code, that it
the
system has re-qualified for triennial monitoring.
(f)
(6)
Reduced monitoring and
changes in water quality, treatment or water source. Any public water
system subject to a reduced monitoring frequency under paragraph (D)(4) of this
rule shall notify the director, and any consecutive or
wholesale system, in writing in accordance with paragraph (A)(3) of rule
3745-81-90 of the Administrative
Code of any of the following including, but not limited
to changes in water quality that has the potential to affect or is affecting
optimal corrosion control, upcoming substantial change in treatment, or an addition of a
new source as described in that rule. The
director shall review and approve the addition of a new source or substantial
change in water treatment before it is implemented by the water system. The
director may require the public water system to resume sampling in accordance
with paragraph (D)(3) of this rule and collect the number of samples specified
for standard monitoring under paragraph (C) of this rule or take other
appropriate steps such as increased water quality parameter monitoring or
re-evaluation of its corrosion control treatment given the potentially
different water quality considerations.
(1) Initial tap
sampling. The first six-month monitoring period for large, medium, and small
new
community or nontransient noncommunity water systems shall begin on
the following dates:
either January first or July first, whichever comes first
after activation as a water system.
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(a) All large
systems shall monitor during two consecutive six-month periods.
(b) All small and medium systems shall
monitor during each six-month monitoring period until one of the following occurs:
(i) The public water system exceeds the lead
or copper action level and is therefore required to implement the corrosion
control treatment requirements under rule
3745-81-81 of the Administrative
Code, in which case the system shall continue monitoring in accordance with
paragraph (D)(2) of this rule, or
.
(ii) The
public water system monitoring results do not exceed the lead or copper action
level during two consecutive six-month monitoring periods, in which case the
system may reduce monitoring in accordance with paragraph (D)(4) of this
rule.
(2)
Monitoring after installation of corrosion control and source water treatment.
(a) Any large system which installs optimal
corrosion control treatment pursuant to paragraph (D)(4) of rule
3745-81-81 of the Administrative
Code shall monitor during two consecutive six-month monitoring periods
by the date specified in
accordance with paragraph (D)(5) of rule
3745-81-81 of the Administrative
Code.
(b) Any small or medium
system which installs optimal corrosion control treatment pursuant to paragraph
(E)(5) of rule
3745-81-81 of the Administrative
Code shall monitor during two consecutive six-month monitoring periods
by the date specified in
accordance with paragraph (E)(6) of rule
3745-81-81 of the Administrative
Code.
(c) Any public water system
which installs source water treatment pursuant to paragraph (A)(3) of rule
3745-81-83 of the Administrative
Code shall monitor during two consecutive six-month monitoring periods by the
date specified in paragraph (A)(4) of rule
3745-81-83 of the Administrative
Code.
(3) Monitoring
after the director specifies water quality parameter values for optimal
corrosion control. After the director specifies the values for water quality
control parameters under paragraph (F) of rule
3745-81-82 of the Administrative
Code, the public water system shall monitor during each subsequent six-month
monitoring period, with the first monitoring period to begin on the date the
director specifies the optimal values under paragraph (F) of rule
3745-81-82 of the Administrative
Code.
(4) Reduced monitoring.
(a) A small or medium water system that does
not exceed either the lead or copper action level during two consecutive
six-month monitoring periods may reduce the number of samples according to
paragraph (C) of this rule, and reduce the frequency of sampling to one
monitoring period per year. A small or medium public water system collecting
fewer than five samples as specified in paragraph (C) of this rule, that does
not exceed either the lead or copper action level during two consecutive
six-month monitoring periods may reduce the frequency of sampling to one
monitoring period per year. In no case can this public water system reduce the
number of samples required below the minimum of one sample per available tap.
This sampling shall begin during the calendar year immediately following the
end of the second consecutive six-month monitoring period.
(b) Reduced annual monitoring. Any public
water system that meets the lead action level and maintains the range of values
for the water quality control parameters reflecting optimal corrosion control
treatment approved by the director under paragraph (F) of rule
3745-81-82 of the Administrative
Code during each of two consecutive six-month monitoring periods may reduce the
frequency of monitoring to once per year and to reduce the number of lead and
copper samples in accordance with paragraph (C) of this rule if it receives
written approval from the director. This sampling shall begin during the
calendar year immediately following the end of the second consecutive six-month
monitoring period. The director shall review monitoring, treatment, and other
relevant information submitted by the public water system in accordance with
rule 3745-81-90 of the Administrative
Code, and shall notify the system in writing, when the director determines the
system is eligible to commence reduced monitoring pursuant to this paragraph.
The director shall review, and where appropriate, revise such a determination
when the system submits new monitoring or treatment data, or when other data
relevant to the number and frequency of tap sampling become
available.
(c) Reduced triennial
monitoring. A small or medium public water system
that does not exceed either the lead or copper action level during three
consecutive years of monitoring may reduce the frequency of monitoring
As of the effective date of this rule, no
water systems are eligible to monitor for lead and copper
from annually to once every three
years. Any public water system that does not exceed
the lead action level and maintains the range of values for the water quality
control parameters reflecting optimal corrosion control treatment approved by
the director under paragraph (F) of rule 3745-81-82 of the Administrative Code
during three consecutive years of monitoring may reduce the frequency of
monitoring from annually to once every three years if it receives
without applying for and obtaining written
approval from the director. Any public water system
that exceeds the lead action level or fails to maintain the range of values for
the water quality control parameters reflecting optimal corrosion control
treatment approved by the director under paragraph (F) of rule
3745-81-82 of the Administrative
Code during five consecutive monitoring periods will not be eligible to reduce
the frequency of monitoring from annually to once every three years. To apply
for approval, an eligible water system shall provide the director with
documentation that at least one of the criteria listed in paragraphs
(D)(4)(c)(i) to (D)(4)(c)(iii) of this rule were met. Samples collected
once every three years shall be collected no later than every third calendar
year. The
In
addition to reviewing information submitted pursuant to paragraphs (D)(4)(c)(i)
to (D)(4)(c)(iii) of this rule, the director shall review monitoring,
treatment and other relevant information submitted by the public water system
in accordance with rule
3745-81-90 of the Administrative
Code, and shall notify the system in writing when it
is determined that the system is eligible to reduce
as part of the frequency
of monitoring to once every three
years
frequency determination.
The director shall review, and where appropriate,
revise the determination when
Any water systems
that did not receive written approval from the director and were conducting
triennial monitoring prior the effective date of this rule, shall conduct
annual lead and copper monitoring. When the water system submits new monitoring or treatment data,
or when other data relevant to the number and frequency of tap sampling becomes
available, the director shall review, and where
appropriate, revise the determination.
(i)
The water system
shall demonstrate that the tap water lead level computed under paragraph (C)(3)
of rule 3745-81-80 of the Administrative
Code is less than or equal to 0.005 milligrams per liter and the tap water
copper level computed under paragraph (C) (3) of rule
3745-81-80 of the Administrative
Code is less than or equal to 0.65 milligrams per liter for five consecutive
monitoring periods.
(ii)
The water system shall demonstrate that the system has
maintained the range of values for water quality control parameters reflecting
optimal corrosion control treatment approved by the director under paragraph
(F) of rule
3745-81-82 of the Administrative
Code, if applicable, during five consecutive monitoring
periods.
(iii)
The water system shall demonstrate that the system does
not own service lines, fixtures, pipe or solder that contain
lead.
(d) A public
water system that reduces the number of sampling sites and the frequency of
monitoring shall collect these samples from representative sites included in
the pool of targeted sampling sites identified in paragraph (A) of this rule.
Public water systems monitoring annually or less frequently shall conduct the
lead and copper tap water monitoring during the months of June through
September unless the director has approved a different sampling period in
accordance with paragraph (D)(4)(d)(i) of this rule.
(i) The director may approve a different
period for conducting the lead and copper tap sampling for public water systems
collecting a reduced number of samples. Such a period shall be no longer than
four consecutive months and shall represent a time of normal operation where
the highest levels of lead are most likely to occur. For a nontransient
noncommunity water system that does not operate during the months of June
through September, and for which the period of normal operation where the
highest levels of lead are most likely to occur is not known, the director
shall designate a period that represents a time of normal operation for the
system. This sampling shall begin during the period approved by the director in
the calendar year immediately following the end of the second consecutive
six-month monitoring period for systems initiating annual monitoring and during
the three-year period following the end of the third consecutive year of annual
monitoring for systems initiating triennial monitoring.
(ii) Public water systems monitoring
annually, that have been collecting samples during the months of June through
September and that receive the director's approval to alter their sample
collection period under paragraph (D)(4)(d)(i) of this rule, shall collect
their next round of samples during a time period that ends no later than
twenty-one months after the previous round of sampling. Public water systems
monitoring triennially that have been collecting samples during the months of
June through September, and receive the director's approval to alter the
sampling collection period in accordance with paragraph (D)(4)(d)(i) of this
rule, shall collect their next round of samples during a time period that ends
no later than forty-five months after the previous round of sampling.
Subsequent rounds of sampling shall be collected annually or triennially, as
required by this rule.
(E) Additional monitoring by public water
systems.
The results of any monitoring conducted in addition to the minimum requirements of this rule shall be considered by the public water system and the director in making any determinations, i.e., calculating the ninetieth percentile lead or copper level, under rule 3745-81-80 of the Administrative Code. Samples meeting any of the criteria in paragraphs (E)(1) to (E)(5) of this rule will be identified as special purpose and not be considered for compliance with rules 3745-81-80 to 3745-81-90 of the Administrative Code. Water systems shall comply with the requirements for consumer notice of special purpose sample results per paragraph (A) of rule 3745-81-85 of the Administrative Code.
(1)
Samples taken outside the required monitoring
period.
(2)
Samples taken from a tier site lower than the required
tier.
(3)
Repeat samples taken from the same site during the same
monitoring period (i.e. investigatory samples) unless the water system has
fewer than five taps as described in paragraph (C) of this
rule.
(4)
Samples not collected in accordance with the approved
sampling methodology of this rule.
(5)
Samples taken
after lead service line replacement in accordance with rule
3745-81-84 of the Administrative
Code.
(F)
Invalidation of lead or copper tap water samples.
A sample invalidated under this paragraph does not count toward determining lead or copper ninetieth percentile levels under paragraph (C)(3) of rule 3745-81-80 of the Administrative Code or toward meeting the minimum monitoring requirements of paragraph (C) of this rule.
(1) The director may
invalidate a lead or copper tap water sample if at least one of the following
conditions is met.
(a) The laboratory
establishes that improper sample analysis caused erroneous results.
(b) The director determines that the sample
was taken from a site that did not meet the site selection criteria of this
rule.
(c) The sample container was
damaged in transit.
(d) There is
substantial reason to believe that the sample was subject to
tampering.
(2) The
public water system shall report the results of all samples to the director and
all supporting documentation for samples the system believes should be
invalidated.
(3) To invalidate a
sample under paragraph (F)(1) of this rule, the decision and the rationale for
the decision shall be documented in writing. The director may not invalidate a
sample solely on the grounds that a follow-up sample result is higher or lower
than that of the original sample.
(4) The public water system shall collect
replacement samples for any samples invalidated under paragraph (F)(1) of this
rule if, after the invalidation of one or more samples, the system has too few
samples to meet the minimum requirements of paragraph (C) of this rule. Any
such replacement samples shall be taken as soon as possible, but no later than
twenty days after the date the director invalidates the sample or by the end of
the applicable sampling period, whichever occurs later. Replacement samples
taken after the end of the applicable sampling period shall not also be used to
meet the sampling requirements of a subsequent sampling period. The replacement
samples shall be taken at the same locations as the invalidated samples or, if
that is not possible, at locations other than those already used for sampling
during the sampling period.
Notes
Promulgated Under: 119.03
Statutory Authority: 6109.04, 6109.121
Rule Amplifies: 6109.04, 6109.121
Prior Effective Dates: 09/13/1993, 10/17/2003, 07/24/2009, 05/01/2018
Promulgated Under: 119.03
Statutory Authority: 6109.04, 6109.121
Rule Amplifies: 6109.121, 6109.04
Prior Effective Dates: 9/13/93, 10/17/03, 7/24/09
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